Abstract

Ferromagnetic Bi–Cu codopedZnOnanowires were fabricated at temperatures as low as via a vapor phase transport using the mixture of Zn, and CuI powders. They are grown as a bicrystal, along the direction, have a width of , and a length of a few microns. The investigation of the growth mechanism proposes that the synergy of BiCu and iodine/iodide induces the formation of bicrystallinity. The photoluminescence measurement shows the cooperative effect of Bi and Cu ions. The ferromagnetism observed in this study is the result of the combined effect of structural defects, the substitution of Cu into Zn site along the axis, and codoping of Bi.